How do we control lace bugs on our HOA's common area azaleas?

By OurHOA · General information · Revised October 31, 2026

Azalea lace bugs turn HOA azaleas silver and speckled. How boards scout, time spring treatment, fix sunny beds, pick resistant plants and hire a licensed applicator.

Part of the HOA board handbook: vendors, projects and upkeep.

The short answer

If the azaleas along your entrance or pool fence look pale and speckled on top and have black spots underneath, the likely cause is the azalea lace bug. It is the most common insect pest of azaleas, and it feeds only on azaleas and their relatives. The fix is a schedule, not a single spray. Scout the undersides of leaves from early spring, treat the first generation while numbers are low, and use a soil systemic only on beds that get hit every year. Over time, move the worst beds out of full sun or replant them with resistant cultivars. Light infestations do little real harm, so a few speckled leaves are not an emergency. Rules on pesticide licensing vary by state, and your governing documents decide who maintains shrubs on lots versus common areas. This guide is general education, not legal advice.

Confirm it is lace bugs

Turn a damaged leaf over before anyone sprays. UF/IFAS describes adults as 1/8 to 1/4 inch long, cream colored, with clear lacy wings held flat on the back. Nymphs have no wings and are covered in spines. Clemson notes that nymphs hatch colorless and turn black as they grow. The giveaway is on the underside: shiny black eggs and black, tarry fecal spots, plus cast skins. The University of Kentucky compares the droppings to spilled motor oil. The top of the leaf shows fine white or yellow stippling that can spread until the whole leaf looks bleached or silvery. Spider mites cause similar stippling on azaleas. Mites are tiny, make fine webbing and don't leave the black tar spots. UF/IFAS suggests tapping branches over white paper to check for mites, and Kentucky uses the same trick for lace bug nymphs. If the volunteer doing the check isn't sure, bag a few leaves and take them to the county Extension office. Getting the pest wrong means paying for the wrong product.

Learn the calendar

Lace bugs spend winter as eggs tucked into leaf tissue along the midrib, so a winter spray hits nothing. Brown or black spots on old leaves in January tell you which beds had them last year. The number of generations depends on how warm it is. UF/IFAS counts three to five a year in Florida. Clemson lists the first generation in March through May, a second in July and August, and more in September and October. Kentucky reports two to four farther north. Each generation stacks on the last, which is why Clemson says to treat when the first generation appears. Killing a few hundred nymphs in April prevents thousands in August. For a Texas or Florida board, that means scouting starts in March, while the azaleas are blooming. In Colorado, azaleas rarely do well in the alkaline soil, and few associations grow them in common areas. Ask the landscape crew to check the same bed sections every two weeks from March through October and to note what they find on the work order. UF/IFAS goes further and suggests weekly checks with a hand lens. Either is fine. What matters is that someone looks under the leaves on a schedule.

Fix the beds that keep getting hit

Sun is the biggest factor. UF/IFAS and Mississippi State both say the worst damage happens on azaleas in full sun. Kentucky adds that shaded azaleas have fewer lace bugs, likely because more natural enemies survive there. Mississippi State also flags drought stress. What that means in practice: - Water deeply during dry spells. A sunny entrance bed on a spray zone set for turf is often both thirsty and infested. - Keep a mulch layer to hold moisture, and don't let crews pile it against stems. - When a full-sun bed has needed treatment three years in a row, plan to replace it with a shrub that suits full sun and leave azaleas to the shaded beds. - Protect natural enemies. Clemson names assassin bugs, lacewings, predatory mites and spiders. Broad-spectrum sprays kill them too, which is one reason to spray only where scouting finds live lace bugs. UF/IFAS also notes that a hard jet of water aimed at the leaf undersides knocks many lace bugs off. It is a cheap first step on a small bed, though it won't clear a heavy infestation.

Choose resistant plants when you replant

Every dead or ragged azalea the association replaces is a chance to fix the problem permanently. Clemson's fact sheet, updated in July 2026, lists cultivars with resistance, among them 'Dawn', 'Pink Star', 'Cavalier', 'Pink Fancy', 'Macrantha', 'Salmon Pink', 'Elsie Lee', 'Red Wing', 'Sunglow' and 'Marilee'. UF/IFAS notes that lace bugs favor evergreen azaleas, and Kentucky agrees that evergreen types are more prone, though deciduous azaleas can still be attacked. Resistance is not immunity, and nurseries carry different cultivars. Put the cultivar name on the planting plan, ask the installer to leave the tags on until a board member checks them, and don't accept a substitute that isn't on your list. Our guide on how to hire an HOA landscaping contractor covers writing those requirements into the contract.

Treatment options, in order

Treat only beds where scouting finds live lace bugs, and start with the gentlest option that fits. 1. Soft sprays on young nymphs. UF/IFAS says spring is the best time to control lace bugs with insecticidal soap, horticultural oil or neem oil applied to the leaf undersides. Coverage is everything, because these products work only on the insects they touch. 2. A follow-up spray. Clemson recommends a second foliar application 7 to 10 days after the first to catch nymphs that hatched in between. 3. Conventional foliar sprays for heavy infestations. Clemson lists acephate, which moves into the leaf, and contact products such as bifenthrin, cyfluthrin, cyhalothrin and malathion, which must reach the lower leaf surface. 4. Soil systemics for chronic beds. Clemson, Kentucky and Mississippi State all name soil-applied imidacloprid or dinotefuran for season-long control. Mississippi State calls them somewhat costly and best suited to plantings that are attacked heavily year after year. Two cautions belong in the contract. Mississippi State says not to apply foliar sprays to azaleas while flowers are open, to protect pollinators such as bumble bees, and to follow the label's pollinator precautions for any product. Clemson warns that imidacloprid soil drenches can contribute to spider mite outbreaks where mites have been a problem, so keep scouting after a drench. Our guide on controlling ficus whitefly on Florida hedges explains why rotating insecticide classes matters when the same beds get treated year after year.

Who may apply pesticides on common areas

A board member with a hose-end sprayer from the hardware store is a liability problem. Paid pesticide work is licensed in both Texas and Florida. - Texas. Tex. Occ. Code 1951.003(a)(1)(B) defines controlling pests on trees, shrubs or other plantings in a park or next to a residence, done for pay, as structural pest control, and section 1951.301(b) requires a business license to do it. Get the Texas Department of Agriculture license number. - Florida. Fla. Stat. 482.156(1) lets landscape maintenance workers with the limited certification treat ornamental plants only with products carrying no signal word or "caution," applied by handheld equipment or backpack sprayers. A product labeled "warning" or a power sprayer requires a full pest control license. Other states have their own rules, so check with your state agriculture department. Before the first application, collect the license number and a certificate of insurance, and ask the vendor to log each treatment by date, bed, product and rate.

Sample year, motion and owner notice

A sample year for a Texas or Florida association: - January: walk the beds and mark which ones show old black spots. Budget for replacements. - February: approve the scouting and treatment scope with the landscape contractor. - March to May: scout every two weeks. Soft sprays on infested beds after the flowers drop, with a follow-up 7 to 10 days later. Soil systemic on chronic beds only, per the label. - June to August: keep scouting. Water sunny beds deeply in dry weather. - September and October: check for the late generations and treat if live insects turn up. - November and December: replant failed full-sun beds with resistant cultivars or sun-tolerant shrubs. Motion: "Move that the association amend the landscape contract with [contractor] to add biweekly lace bug scouting of common area azaleas from March through October, with treatment only on beds where live lace bugs are found, no foliar sprays while flowers are open, applications by a licensed applicator with the license number and certificate of insurance on file, and a total cost not to exceed $[amount] for [year]." Owner notice: "Some common area azaleas have pale, speckled leaves caused by azalea lace bugs. The association is scouting the beds, treating only where the insects are active and replacing the worst sunny beds with resistant plants. If your own azaleas look the same, turn a leaf over. Black spots underneath are the sign." The mistakes that keep beds silver: spraying in winter when only eggs are present, waiting until August, spraying the tops of leaves, drenching every bed every year, spraying open flowers, and replanting the same susceptible azaleas in the same hot sun.

Sources

These guides are general education for HOA boards and residents, not legal, tax, or financial advice. Rules vary by state and by your community's governing documents - check with a professional for your situation.

More on living with an hoa

Or browse all living with an hoa guides.